BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 United States 58 50.9%
2 China 23 20.2%
3 Germany 15 13.2%
4 Hong Kong 6 5.3%
5 Japan 3 2.6%
6 France 3 2.6%
7 Canada 2 1.8%
8 Malaysia 2 1.8%
9 Switzerland 1 0.9%
10 Australia 1 0.9%